GB9106006D0 - Junk mill - Google Patents

Junk mill

Info

Publication number
GB9106006D0
GB9106006D0 GB919106006A GB9106006A GB9106006D0 GB 9106006 D0 GB9106006 D0 GB 9106006D0 GB 919106006 A GB919106006 A GB 919106006A GB 9106006 A GB9106006 A GB 9106006A GB 9106006 D0 GB9106006 D0 GB 9106006D0
Authority
GB
United Kingdom
Prior art keywords
junk mill
junk
mill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB919106006A
Other versions
GB2242379A (en
GB2242379B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith International North Sea Ltd
Original Assignee
Smith International North Sea Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smith International North Sea Ltd filed Critical Smith International North Sea Ltd
Publication of GB9106006D0 publication Critical patent/GB9106006D0/en
Publication of GB2242379A publication Critical patent/GB2242379A/en
Application granted granted Critical
Publication of GB2242379B publication Critical patent/GB2242379B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
    • E21B29/005—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
GB9106006A 1990-03-29 1991-03-21 Junk mill Expired - Fee Related GB2242379B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909007023A GB9007023D0 (en) 1990-03-29 1990-03-29 Junk mill

Publications (3)

Publication Number Publication Date
GB9106006D0 true GB9106006D0 (en) 1991-05-08
GB2242379A GB2242379A (en) 1991-10-02
GB2242379B GB2242379B (en) 1993-07-28

Family

ID=10673466

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909007023A Pending GB9007023D0 (en) 1990-03-29 1990-03-29 Junk mill
GB9106006A Expired - Fee Related GB2242379B (en) 1990-03-29 1991-03-21 Junk mill

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909007023A Pending GB9007023D0 (en) 1990-03-29 1990-03-29 Junk mill

Country Status (2)

Country Link
GB (2) GB9007023D0 (en)
NO (1) NO911265L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111819337A (en) * 2018-03-08 2020-10-23 玫海伟尔特股份有限公司 Drill bit and drilling system comprising such a drill bit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0577545A1 (en) * 1992-06-19 1994-01-05 Broder Ag Drill bit
CN2685530Y (en) * 2004-03-09 2005-03-16 伍利钱 Drill bits for enlarging the borehole
US7753139B2 (en) 2005-07-06 2010-07-13 Smith International, Inc. Cutting device with multiple cutting structures
US8186458B2 (en) 2005-07-06 2012-05-29 Smith International, Inc. Expandable window milling bit and methods of milling a window in casing
GB2569330B (en) 2017-12-13 2021-01-06 Nov Downhole Eurasia Ltd Downhole devices and associated apparatus and methods
CN109723385B (en) * 2019-01-17 2021-03-19 西南石油大学 PDC drill bit with diameter-keeping and reducing functions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195636A (en) * 1962-09-07 1965-07-20 Servco Co Apparatus for cutting and milling in well bores

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111819337A (en) * 2018-03-08 2020-10-23 玫海伟尔特股份有限公司 Drill bit and drilling system comprising such a drill bit

Also Published As

Publication number Publication date
GB2242379A (en) 1991-10-02
GB9007023D0 (en) 1990-05-30
GB2242379B (en) 1993-07-28
NO911265D0 (en) 1991-03-27
NO911265L (en) 1991-09-30

Similar Documents

Publication Publication Date Title
GB9003047D0 (en) Insert type window mill
GB2248044B (en) Improved doll-carriages
AU629149B2 (en) Crusher
GB2242379B (en) Junk mill
GB9004680D0 (en) Documents
GB9016626D0 (en) Knives
GB2272179B (en) Crushers
GB9017369D0 (en) Shredder
GB2248607B (en) Improved fishbox
GB9005419D0 (en) Improved depanner
AU115383S (en) Mill
AU115384S (en) Mill
GB2245209B (en) Crushers
GB2290728B (en) Mill
RU1833754C (en) Mill
RU1769978C (en) Classifier
GB2247906B (en) Structural elements
ZA907526B (en) Mill
GB9008474D0 (en) Multi-stand
ZA919402B (en) Shredder
AU115382S (en) Mill
GB9007196D0 (en) Wind double mill
GB9011645D0 (en) Can crusher
GB9000396D0 (en) Can crusher
GB9011451D0 (en) Bacterail strains

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980321